Barcelona

$390+ Cheap flights from San Juan to Barcelona

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BCN
Apr 28 — May 51
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Cheap flight deals from San Juan to Barcelona

Cheapest flights from San Juan to Barcelona
Explore the most affordable flight options available from San Juan to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 29, 2026.

This FlightHub deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:05 pm
SJU
-
BCN
1 stop18h 35m
Avianca
Tue 8/181:50 pm
BCN
-
SJU
1 stop33h 20m
Avianca
Deal found 3/27$576
This Trip.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:35 pm
SJU
-
BCN
1 stop32h 10m
Avianca
Sat 5/301:50 pm
BCN
-
SJU
1 stop33h 20m
Avianca
Deal found 3/24$592
This Avianca deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:30 pm
SJU
-
BCN
1 stop32h 10m
Avianca
Fri 11/1312:50 pm
BCN
-
SJU
1 stop33h 15m
Avianca
Deal found 3/26$601
This FlightHub deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:30 pm
SJU
-
BCN
1 stop32h 10m
Avianca
Fri 11/612:50 pm
BCN
-
SJU
1 stop27h 45m
Avianca
Deal found 3/27$631
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:45 am
SJU
-
BCN
2 stops19h 35m
United Airlines
Wed 11/1810:30 am
BCN
-
SJU
2 stops33h 10m
United Airlines
Deal found 3/24$640
This Finnair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:05 pm
SJU
-
BCN
1 stop18h 55m
Multiple Airlines
Fri 10/233:35 pm
BCN
-
SJU
1 stop25h 30m
Multiple Airlines
Deal found 3/25$649
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:56 pm
SJU
-
BCN
2 stops24h 29m
United Airlines
Tue 10/208:00 am
BCN
-
SJU
2 stops34h 34m
United Airlines
Deal found 3/24$651
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/204:55 pm
SJU
-
BCN
1 stop33h 25m
United Airlines
Wed 9/306:40 am
BCN
-
SJU
2 stops19h 58m
United Airlines
Deal found 3/24$652
This Avianca deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:35 pm
SJU
-
BCN
1 stop32h 10m
Avianca
Wed 6/31:50 pm
BCN
-
SJU
1 stop27h 35m
Avianca
Deal found 3/23$656
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/201:00 am
SJU
-
BCN
2 stops25h 20m
United Airlines
Fri 10/26:40 am
BCN
-
SJU
2 stops19h 58m
United Airlines
Deal found 3/24$657
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:56 pm
SJU
-
BCN
2 stops24h 29m
United Airlines
Tue 10/206:40 am
BCN
-
SJU
2 stops19h 58m
United Airlines
Deal found 3/24$660

Find flight deals from San Juan to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 29, 2026.

Round-trip from

$576
(FlightHub)

One-way from

$390
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$737
From San Juan to Barcelona
One-way flight from San Juan to Barcelona
Highest demand for flights based on searches. 28% potential increase in price ($285 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan to Barcelona that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 29, 2026.
Use the filters below to find and compare flights from San Juan to Barcelona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Sun 5/10

7:20 am-8:20 am

1 stop19h 00m

Barcelona-El Prat

Tue 6/2

6:40 am-9:24 pm

2 stops20h 44m

$854

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Thu 4/30

7:20 am-8:20 am

1 stop19h 00m

Barcelona-El Prat

Wed 5/13

6:40 am-9:24 pm

2 stops20h 44m

$882

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Mon 5/11

7:40 am-1:15 pm

1 stop23h 35m

Barcelona-El Prat

Mon 6/1

8:00 am-11:50 pm

2 stops21h 50m

$1,005

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Sat 5/16

7:05 am-10:15 am

2 stops21h 10m

Barcelona-El Prat

Thu 6/4

6:20 am-10:17 pm

2 stops21h 57m

$1,057

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Sat 5/23

5:43 pm-8:35 am

2 stops32h 52m

Barcelona-El Prat

Mon 6/1

9:20 am-11:35 pm

2 stops44h 15m

$1,074

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Tue 6/9

1:05 pm-1:40 pm

1 stop18h 35m

Barcelona-El Prat

Tue 6/23

10:00 am-2:34 pm

3 stops34h 34m

$1,084

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Sat 5/23

4:55 pm-3:35 pm

2 stops16h 40m

Barcelona-El Prat

Sun 5/31

6:00 am-2:44 pm

2 stops38h 44m

$1,186

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Fri 5/29

1:00 am-8:20 am

2 stops25h 20m

Barcelona-El Prat

Wed 6/24

10:15 am-5:29 am

2 stops25h 14m

$1,196

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Sun 5/17

1:31 pm-10:30 pm

2 stops26h 59m

Barcelona-El Prat

Mon 6/1

8:35 pm-11:01 pm

2 stops32h 26m

$1,285

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Mon 5/25

2:56 pm-10:10 am

1 stop13h 14m

Barcelona-El Prat

Mon 6/1

8:35 pm-11:01 pm

2 stops32h 26m

$1,347

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 21 resultsSorted by cheapest first
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2
3

Best time to book a flight from San Juan to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from San Juan with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Juan to Barcelona

How far ahead should I book a flight from San Juan to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Barcelona. Price data was last updated on March 13, 2026.

To ensure you get the cheapest price possible for a flight from San Juan to Barcelona, you should look to book at least 89 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Juan to Barcelona?

Currently, February is the cheapest month in which you can book a flight from San Juan to Barcelona (average of $378). Flying from San Juan to Barcelona in June is currently the most expensive (average of $853). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from San Juan to Barcelona?

How often are flights from San Juan to Barcelona delayed?

About 0% of weekly flights between San Juan and Barcelona have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for San Juan to Barcelona flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona. Reviews last updated March 29, 2026.
Get a feel of what it's like to fly with Delta,KLM, andUnited Airlines from San Juan to Barcelona by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Related info for your journey

Find useful and relevant information for your journey from San Juan to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from San Juan to Barcelona?

    United Airlines and Delta can get you from San Juan to Barcelona in just under 19h. Your travel time can differ by up to 2h 10m. The distance between San Juan and Barcelona is about 4257 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from San Juan to Barcelona round-trip?

    Delta, at $380, was found to be the cheapest airline from San Juan to Barcelona.Alternate airlines to your destination round-trip include United Airlines and KLM. Delta is 47% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Juan to Barcelona one-way?

    The cheapest airlines for a one-way flight from San Juan to Barcelona are Iberia ($293), American Airlines ($305), and United Airlines ($344).

  • Where are the most common layover locations when flying from San Juan to Barcelona?

  • What are some popular things to do or see while on a layover in Paris?

    Eiffel Tower, Champs-Elysées, and Louvre Museum are currently the most popular points of interest in Paris at the moment. Eiffel Tower, Champs-Elysées, and Louvre Museum can be accessed by traveling approximately 15.8 mi, 14.7 mi, and 14.3 mi, respectively from Paris Charles de Gaulle. Travelers in need of a car in Paris can rent one for about $36 per day.

  • What are some popular points of interest to see during a layover in Atlanta?

    The majority of Atlanta visitors spend their time at Georgia Aquarium, Fox Theatre, and Centennial Olympic Park. Travelers on a layover in Atlanta can visit Georgia Aquarium, Fox Theatre, and Centennial Olympic Park, by traveling 8.6 mi, 9.3 mi, and 8.4 mi, respectively after landing at Atlanta Hartsfield-Jackson. Travelers can book a car rental at Atlanta Hartsfield-Jackson for about $57 per day to make their sightseeing more efficient.

  • What are points of interest worth seeing during a layover in New York?

    If you're on a layover in New York and looking for things to do, consider visiting Times Square, New York City Center, or Madison Square Garden. Times Square, New York City Center, and Madison Square Garden can be visited by traveling about 13.6 mi, 13.6 mi, and 13.6 mi respectively from New York John F Kennedy Intl. Travelers in need of a car in New York can rent one for about $64 per day.

  • Where are the least popular layover locations for San Juan to Barcelona flights?

  • Can I find deals for flights from San Juan to Barcelona that include hotel bookings?

    Yes. In addition to deals on San Juan to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Juan to Barcelona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Juan to Barcelona.

  • Can I find deals for business class flights from San Juan to Barcelona?

    Yes. Cheapflights offers flight deals from San Juan to Barcelona by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Juan to Barcelona?

    Currently, February is the cheapest month in which you can book a flight from San Juan to Barcelona (average of $378). Flying from San Juan to Barcelona in June is currently the most expensive (average of $853). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 8 airlines flying from San Juan to Barcelona

Discover the top 8 airlines that operate flights from San Juan to Barcelona. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$380Average$853FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$435Average$767FlexibilityNo cancel feeOn-time69%
KLMCheapest$460Average$781FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$460Average$697FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$496Average$898FlexibilityNo cancel feeOn-time71%
IberiaCheapest$523Average$846FlexibilityNo cancel feeOn-time77%
AviancaCheapest$554Average$957FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$747Average$951FlexibilityNo cancel feeOn-time62%

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